Metallic window-sash.



PATENTED JAN. 14, 1908.

E. H. JOHNSON. METALLIC WINDOW SASH. APPLICATION FILED MAR. 27, 1907.

EDWARD H. JOHNSON, OF LOS ANGELES, CALIFORNIA.

METALLIC WINDOW-SASI-I.

Specification of Letters Patent.

Patented Jan. 14:, 1908.

Application filed March 27. 1907. Serial No. 364.791

To all whom it may concern:

Be it known that I, EDWARD H. JOHNSON, a citizen of the United States,residing at Los Angeles, county of Los Angeles, State of California,have invented new and useful Improvements in Metallic Window-Sashes, ofwhich the following is a specification.

My invention. relates to awindow sash formed of sheet metal and theobject thereof is to provide a window sash which will be light, and atthe same time rigid, and in which the glass can be quickly securedtherein or taken out of the same. I accomplish this object by the sashdescribed herein and illustrated in the accompanying drawings in which:

Figure 1 is a front elevation of. an upper and lower window sashembodying my invention, with a portion of the surrounding frame shown.Figs. 2, to 6 are sectional fragmentary parts of thesash to show thedetails of construction.

In the drawings 10 is the bottom rail and 11 is the top rail of thebottom frame of my improved sash frame when the window consists of twoframes, and 12 is the bottom rail, and 13 is the top rail of the topframe of my improved sash frame. The u per edge of the inner face of theto rail 0 the top sash frame is connected to t e top plate 14'by adouble roll lap seam 15. The inner face of the top rail is vertical fromits junction with the top plate a suitable distance which is as far asdesired, when the sheet metal of which it is composed is bent at anangle to the ver tical line downwardly as best shown at 16 in Fi 2 untilit reaches the point at which it will engage the pane of glass 17, it isthen bent upwardly and a little ofi the vertical line so as to leave a sace between the pane of glass and the metaFas shown at 18. The sheet isthen bent on a line parallel with the top plate as shown at 19, and isthen bent downwardly and inwardly and then doubled back on itself toform the lockin ledge 20. It is then bent upwardly paralle with theinner face of the rail to form the outer face of the top rail and isthen united to the top plate by a double roll lap seam 22.

The bottom rail of the bottom sash is connected to the bottom plate23byra double roll lap seam 24. The inner face of the bottom rail isvertical from its junction with the bottom plate a suitable distance,which is as far as desired, when the sheet metal of which it is composedis bent at an angle to the vertical line upwardly as shown at 25 in Fig.4 until it reaches the oint at which it will engage the pane of g ass.26. It is then bent downwardly and a little off the vertical line so asto leave a space between the pane of glass and the metal as shown at 2 6The sheet is then bent on a line at right angles with the inner face asshown at 27, and is then bent upwardly and inwardly and then doubledback on itself to form the locking ledge 28. It is then bent downwardlyparallel with the inner face of the rail to form the outer face of thebottom rail and is then united to the bottom plate by a double roll lapseam 29. When the ledge 30 of the window casing slopes downwardly andoutwardly, as is usual, the outer face of the bottom rail of the bottomframe will be wider than the inner face. The top rail of the bottom sashframe is formed in the samemanner as the top rail of the top sashframe,except that the top plate is connected to the inner face of thetop, rail by horizontal double roll lap seam 31 instead of a verticalseam as shown at 15, and extends-beyond the inner face of the rail toform a closure ledge 32, the inner face being projected as shown, andformin a part of the closure ledge.

The ottom rail of the top sash frame is formed in the same manner as thebottom rail of the bottom sash frame, except that the double roll lapseam 33 is in the same plane as the bottom plate which is extendedeyond'the inner face of the bottom rail and with the projected innersurface forms a closure ledge 34'which laps the .closure ledge 32 of theother frame and makes a dust proof joint between the two sash frames.

These closure ledges can be omitted if desired.

The side rails of thediflerent frames are all of the same construction,and I will describe only one side of the top frame as the others areconstructed in the same manner. The inner vertical surface 35 pro'ectsupwardly back of the'inner surface of t e top rail, and

is connected at the to with the top edge of the top rail by a doub eroll lap seam.

The outer edge of side rail 35 is bent between the tcp and bottom railsto form with the edge closure strip a double lap seam as shown at 40. Atthe top and bottom rails that portion of the metal which below forms thelap seam is cut away and the ends of the end rails are bent around backof the side pieces and with the edge closure strips are into grooves 55where it is securely retained ormed lnto double lap seams. The upperAfter the sash is formed as beend is cut away so as to fit the bevel ofthe top rail, and the side rail from its vertical face which lies in aplane parallel with the vertical face of the top rail is bent inwardlyon an angle as best shown at 36 until it reaches the point at which itwill en age the pane of glass 17. It is then bent bac wardly and alittle off the plane of the vertical face scan to leave a spacebetween'the pane of glass and the .metal as shown at 37. The sheetisthen bent on a line at right angles n away therefrom and is then bentbackwar ly and inwardly and then doubled back on itself to form alocking ledge 38. It is, then bent parallel with the vertical innerface. The outer edges of the sheet are united by the double roll lapseams 39 and 40 to the end closure plate 41. The end closure plate isbent so as to form guide groove 42 into which is received guide tongue43, of the detached retaining strip 44 which travels in the usualguideways of the window frame 45 and holds the sash frames fromseparating therefrom. Groove 42 is closed by the to plate but is open atthe bottom, so that if sash could be lowered its full extent therebybringing with it the retaining strip. The retaining strip could then besecured against moving upwardly when .the upper sash could then beraised and taken out of the window frame. It will be understood thatthis retaining strip is a little shorter than the vertical side rails.

- The window frame is provided with pulleys 46 over which pass chains 47having one end secured to the weight 48, by means of which the weight ofthe sash frame is counterbal-- anced, and the other. end secured to theretaining strip. Where there are a'plurahty of panes in the'sash framethey are separated by mullions 49. 45'

These mullicns are composed of an outer member .50 and an inner member51. The innermember is composed of a single piece of sheet metal, theedges of which are arallel and form supporting ledges 52 which supportor bear against'the ed es of the glass. From the supporting lefges themembers bend in opposite directions to form bearing ledges 53 and fromthebearing ledges the metal may be bent in any ap ropriate shape. Theouter member is of su stantially the same form as the inner memberexcept that the edges are projected bey 0nd the other member and areturned to form catches 54 which are sprungover the other member whenthe'part'is put in place.

To secure the chain to theretaining strip a groove 55 is cutin the innerportion of the retaining strip as shown in Fig. 5 and a small opening 56is made in one side and pin 57 is passed through opening 56 and throu hthe end of the chain, when the pin is pu ed up esired the top thereto tomake a water-tight joint.

in its place. fore described locking strips 58 are provided for securingthe lass to the sash. These locking stri s are 'ormed of a single pieceof sheet meta one edge of which 59 bears against and su ports the edgeof the glass and I will call t at part of the same the supporting ledge.Thenext portion 60 bears against the face of the glass and I willcall itthe bearing ledge. From the bearing ledge themetal is turned at an angleand runs to the outer face of the sash and is then doubled back onitself and the edge turned over to form the locking pocket 61 whichengages the locking ledge of the sash.

It will be observed that the pane of lass must be of the size to passwithin the loo g ledges of the sash and that the supporting ledges ofthe locking strips are preferably in the same plane as the top of thelockin led e. After the parts are constructed as be ore escribed I placea locking strip on theilower edge of the pane of glass and then placethe lass and locking strip in position in the I then put in side lockingstrips and after that I' ut in place the top locking strip. The last sie locking strip put in place and the top locking strip have to be sprunginto position, and when it glass from the sash with a thin knife thesestrips can be removed by springin them until they Will come out. After te lockin strips and glass are secured in place a sma amount of putty canbe secured upon the top edge of the locking strip to cement the glass 13this construction it will be seen that'at a the corners of thesash-frame there is a double row .of lap joints along two edges wherethe side and end rails overlap each other and is desired to remove thethereby making an extremely rigid joint and forming a brace in twodirections. It will also be observed that the locking stri s also bear aainst the ed es of the glass an upon the loc ing ledges o? the sashframe, thus still further bracing the the glass is in place wooden framewith by utty.

I-lhving described my invention what I claim is:

' 1. A metal window sash frame havin the ends'of the end rails on theoutside 0 the ends of the side rails and bent backjaround the outsideedges of the side rails a d having the ends of the side rails terminting on a the frame is as rigid as a the glass secured therein line withthe outside edges of the end rails and secured thereto by la scams.

2. A metal window sas frame composed of side and end rails havingvertical parallel faces and intermediate portions bent to form bearinlodges and locking ledges, each rail being ormed of a continuous pieceof metal,

sash frame, so that whenamass the ends of said rails overlapping;closure plates for the outer portions of said rails, all of said partsbeing secured together by lap seams; and locking strips provided withdiate portions bent to form bearing ledges and locking ledges, each railbeing formed of a continuous piece of metal; closure plates for theouter portions of said rails, said closure plates being formed ofcontinuous strips of metal bent in the center to form guiding grooves,in combination with retaining strips having tongues adapted to entersaid guiding grooves, v 4. The combination of a metal window sash framehaving guide grooves in the vertical edges thereof, said grooves beingopen at the bottom and closed at the top; and detached retaining stripshaving guide tongues projecting into the grooves of the sash frames. Inwitness that I claim the foregoing I have hereunto subscribed my namethis 19th day of March, 1907.

' EDWARD H. JOHNSON.

Witnesses:

G. E. HARPHAM, S. B. AUSTI

